Climate Insights for Lyons

The climate in Lyons is cool. The average annual temperature is 10°C and approximately 1902mm of precipitation falls per year. January is the wettest month, receiving around 261mm of rainfall. Lyons is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are February, December, January, when temperatures can drop to 0°C. Lyons experiences heavy snowfall, typically from January through December.

Temperatures in Lyons vary considerably across the year, with a 28°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 28°C and the mean temperature sits around 19°C. February is the coolest month, with minimum temperatures around 0°C and an average of 3°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 5°C shift in average temperatures.

Lyons is a fairly wet location, receiving approximately 1902mm of precipitation annually, which averages out to around 158mm per month. The wettest month is January, averaging 261mm of rainfall. February and December also tend to see above-average precipitation. The driest month is August, with just 11mm. That's 250mm less than January, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Lyons receives heavy snowfall, accumulating around 290cm annually from January through December. The snowiest month is February, with approximately 96cm. Winter travel should account for significant snow cover.

Lyons is relatively calm, with an average annual wind speed of 2km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 3km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.

It is currently summer in Lyons, which began on June 21, 2026. Lyons is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 28°C, while the coldest stretch bottoms out in February near 0°C. Autumn is next, beginning on September 23, 2026 — 83 days from now.

The best time to visit Lyons is during July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 13mm per month. By contrast, February can be quite cold with temperatures dropping to 0°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Lyons based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.